1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x695dfc710725101374f326212d991eafd918c64a568279b221cb9cd30ce33949. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9a9089b4-4402-41ad-b242-f5667bfc30c9.json and https://artists.proofprofile.net/proofs/artist/9a9089b4-4402-41ad-b242-f5667bfc30c9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9910603b83844d11f87fb71357878ddb9ce3fcac7a75fe6d1336aeca97ce195a. Chain 2 (Bitcoin): anchored in block 959011 (2026-07-21T16:22:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBPFW1900015.
Gounod: Faust, Act 1: "Ah ! Paresseuse fille qui sommeille encor !" - Chœur des laboureurs. "Aux champs l'aurore nous rappelle" (Chœur, Faust)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde0812e3f604b9755d3e135965d7af7999eb761ebebcd533de948d7884f27b7b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ119100160.
Gounod: Faust, Act 2: "Vin ou bière, bière ou vin" - "Jeune adepte du tonneau" (Chœur, Wagner)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x478043b123fea0807c0bf2728249315678b26a144c1a2b2c80a9026613744fb0. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ119100200.
Gounod: Faust, Act 2: "O sainte médaille, qui me viens de ma sœur" (Valentin, Wagner, Siebel, Chœur)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08930a067c3c8dc01ecfe1b5ccb92d6c3ad026132c2a18dd2f90c2cde67e2d06. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ119100210.
Gounod: Faust, Act 2: "Allons, amis ! Point de vaines alarmes !" (Wagner, Méphistophélès, Chœur)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61f0ce1d06581254b61eaf47d1ed18d9c2c31299bed0065183f60728b48a66d7. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ119100230.
Gounod: Faust, Act 2: Ronde du veau d'or. "Le veau d'or est toujours debout" (Méphistophélès, Chœur)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ffacea3269e09686ebde93e70740dfeedc8cc6d06fa7fb22c9ca9f92d73d84e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ119100240.
Gounod: Faust, Act 2: Récitatif. "Merci de ta chanson !" (Chœur, Valentin, Wagner, Méphistophélès, Siebel)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d43ef18f830d9b3144751f61c1465cd63c1747a24fac7145cb576ab40861dd9. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ119100250.
Gounod: Faust, Act 2: Choral des épées. "De l'enfer qui vient émousser nos armes" (Chœur, Valentin, Wagner, Siebel)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf89be1e32a10b394180b694353a81057c9123dfd2ae93ff616790de7a4676d0c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ119100260.
Gounod: Faust, Act 2: Valse. "Ainsi que la brise légère" (Chœur, Méphistophélès, Faust, Siebel)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb85152b2977c57ba88db4005ebe3562649ad7d39a76e34e4c4c6150dcd628b13. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ119100280.
Gounod: Faust, Act 2: "Ne permettrez-vous pas, ma belle demoiselle" (Faust, Marguerite, Siebel, Méphistophélès, Chœur)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83531b3ec0e1390b710dcf46abc10e8a9a69bdd164a486e73e27d30e5501e5ca. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ119100290.
Gounod: Faust, Act 4: Marguerite au rouet. "Elles ne sont plus là ! - "Il ne revient pas" (Marguerite, Chœur)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf16521c7930050b953e50ce09d17b4d4284b21c5aa91835bb052f498acf71a32. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ119100460.
Gounod: Faust, Act 4: "Seigneur, daignez permettre à votre humble servante" (Marguerite, Méphistophélès, Chœur)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x861fed43f872895e81f0f5f3417812d10018b49983e5468a25f49533b8501bd4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ119100490.
Gounod: Faust, Act 4: Chœur des soldats. "Gloire immortelle de nos aïeux" (Chœur)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c6f278383abb98e80d101738e387098d1cb67d30ee208420bc2b7792958fad2. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ119100510.
Gounod: Faust, Act 4: "Par ici, par ici, mes amis !" (Marthe, Valentin, Marguerite, Siebel, Chœur)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fe3848ed41ab97d7d51893dfa4813fbec547242560efd8abbf7f295b526d54f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ119100550.
Gounod: Faust, Act 4: Mort de Valentin. "Écoute-moi bien, Marguerite" (Valentin, Siebel, Marguerite, Chœur)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc31ecf06b68fc00a1b200376c447d700593ab299d79ee63e1575f20652329fa. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ119100560.
Gounod: Faust, Act 5: "Doux nectar dans ton ivresse" (Chœur, Mephistophélès, Faust)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedd0ad6962016ab111b1c2c40d91fd52ed1c718338837a74a77988e90f119092. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ119100600.
Gounod: Faust, Act 4: "Déposons les armes !" (Chœur, Valentin, Siebel)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56564d70c013b1478be25fd9c4b15116836aa6b96443298d6a1294331b03c25b. Chain 2 (Bitcoin): anchored in block 960223 (2026-07-30T07:51:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ119100500.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Gounod: Faust, Act 5: La nuit de Walpurgis. "Dans les bruyères" (Chœur, Faust, Méphistophélès)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe68ae05862dd1924c4d259a6347e275b517d27a57cbe91bc2f3562f0159a368. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ119100570.
Gounod: Faust, Act 5: "Arrête ! N'as-tu pas promis " (Faust, Méphistophélès, Chœur)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5448e9097c7d28e38e060939181297de6fe81465f3731f315807750789adbea. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ119100580.
Gounod: Faust, Act 5: "Jusqu'aux premiers feux du matin" (Mephistophélès, Chœur, Faust)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01890b6431225956acac24fb86524629c36205b85ee52085a502b96518825c8e. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ119100590.
Orchestre Symphonique De La Garde Républicaine
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1cdc16563537ff751a832f34aaf4c994d0ce5296592bf387151fb0641be3bd4. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FXR522310002.